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Chavan V, Moon D, Ham C, Oh S, Park B, Bhoraskar V, Hong SW. Cross sections for natZr(n,xn)88Zr and natZr(n,xn)89Zr reactions at neutron energies from 29.4 to 42 MeV. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Wang K, Ma L, Yang C, Bian Z, Zhang D, Cui S, Wang M, Chen Z, Li X. Recent Progress in Gd-Containing Materials for Neutron Shielding Applications: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4305. [PMID: 37374489 DOI: 10.3390/ma16124305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
With the rising demand for nuclear energy, the storage/transportation of radioactive nuclear by-products are critical safety issues for humans and the environment. These by-products are closely related to various nuclear radiations. In particular, neutron radiation requires specific protection by neutron shielding materials due to its high penetrating ability to cause irradiation damage. Herein, a basic overview of neutron shielding is presented. Since gadolinium (Gd) has the largest thermal neutron capture cross-section among various neutron absorbing elements, it is an ideal neutron absorber for shielding applications. In the last two decades, there have been many newly developed Gd-containing (i.e., inorganic nonmetallic-based, polymer-based, and metallic-based) shielding materials developed to attenuate and absorb the incident neutrons. On this basis, we present a comprehensive review of the design, processing methods, microstructure characteristics, mechanical properties, and neutron shielding performance of these materials in each category. Furthermore, current challenges for the development and application of shielding materials are discussed. Finally, the potential research directions are highlighted in this rapidly developing field.
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Affiliation(s)
- Kangbao Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Litao Ma
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chen Yang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zeyu Bian
- Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai 201203, China
| | - Dongdong Zhang
- Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai 201203, China
| | - Shuai Cui
- Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai 201203, China
| | - Mingliang Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- School of Physics and Lectronic Information College, Huaibei Normal University, Huaibei 235000, China
- Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, China
| | - Zhe Chen
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
- Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, China
| | - Xianfeng Li
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- School of Physics and Lectronic Information College, Huaibei Normal University, Huaibei 235000, China
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Essenmacher SD, Kleinfeldt CR, Domnanich KA, Bodnar VS, Vyas CK, Severin GW. Proof-of-concept studies of novel protocols for producing highly pure 48V from a 48Cr/ 48V generator. Appl Radiat Isot 2023; 199:110855. [PMID: 37302300 DOI: 10.1016/j.apradiso.2023.110855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/10/2023] [Accepted: 05/12/2023] [Indexed: 06/13/2023]
Abstract
The quest to improve the quality of nuclear data, such as half-lives, transition yields, and reaction cross-sections, is a shared endeavor among various areas of nuclear science. 48V is a vanadium isotope for which experimental data on neutron reaction cross-sections is needed. However, traditional isotope production techniques cannot produce 48V with high enough isotopic purity for some of these measurements. "Isotope harvesting" at the Facility for Rare Isotope Beams (FRIB) is a new isotope production technique that could potentially yield 48V with the necessary purity for such studies. In this case, 48Cr would be collected and allowed to generate 48V that can be separated from undecayed 48Cr to yield highly pure 48V. Thus, any protocol for producing pure 48V via isotope harvesting would involve utilizing a separation technique that can effectively separate 48Cr and 48V. In this study, the radiotracers 51Cr and 48V were used to develop possible radiochemical separation methodologies, which can be translated to obtain high purity 48V via this novel isotope production method. The developed protocols utilize either ion exchange or extraction chromatographic resins. Separations of 51Cr and 48V with AG 1-X8 anion exchange resin respectively resulted in recoveries of 95.6(26)% and 96.2(12)% with radionuclidic purities of 92(2)% and 99(1)%. An even more effective Cr and V separation was obtained with an extraction chromatographic resin (TRU resin) and 10 M HNO3 loading solution. Here, 51Cr and 48V respectively had recoveries of 94.1(28)% and 96.2(13)% with high radionuclidic purities (100(2)% and 100(1)%) in small volumes (8.81(8) mL and 5.39(16) mL). This study suggests that, to maximize the yield and isotopic purity of 48V, the best production protocol would involve utilizing two separations with TRU resin and 10 M HNO3 to isolate 48Cr and purify the generated 48V.
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Affiliation(s)
- Scott D Essenmacher
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA
| | - Chloe R Kleinfeldt
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA
| | - Katharina A Domnanich
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA
| | - Vladyslav S Bodnar
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA
| | - Chirag K Vyas
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA
| | - Gregory W Severin
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, 48824, USA.
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Satija S, Domnanich KA, Bence JA, Vyas CK, Abel EP, Kleinfeldt C, Essenmacher S, Kalman M, Walker W, Despotopulos JD, Scielzo ND, Shusterman JA, Severin GW. Harvesting 88Zr from heavy-ion beam irradiated tungsten at the National Superconducting Cyclotron Laboratory. Appl Radiat Isot 2023; 197:110831. [PMID: 37130469 DOI: 10.1016/j.apradiso.2023.110831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/03/2023] [Accepted: 04/20/2023] [Indexed: 05/04/2023]
Abstract
Tungsten is a commonly used material at many heavy-ion beam facilities, and it often becomes activated due to interactions with a beam. Many of the activation products are useful in basic and applied sciences if they can be recovered efficiently. In order to develop the radiochemistry for harvesting group (IV) elements from irradiated tungsten, a heavy-ion beam containing 88Zr was embedded into a stack of tungsten foils at the National Superconducting Cyclotron Laboratory and a separation methodology was devised to recover the 88Zr. The foils were dissolved in 30% hydrogen peroxide, and the 88Zr was chemically purified from the tungsten matrix and from other co-implanted radionuclides (such as 85Sr and 88Y) using strong cation-exchange (AG MP-50) chromatographic resin in sulfuric acid media. The procedure provided 88Zr in approximately 60 mL 0.5 M sulfuric acid with no detectable radio-impurities. The overall recovery yield for 88Zr was (92.3 ± 1.2)%. This proof-of-concept experiment has facilitated the development of methodologies to harvest from tungsten and tungsten-alloy parts that are regularly irradiated at heavy-ion beam facilities.
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Affiliation(s)
- Samridhi Satija
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Katharina A Domnanich
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Jake A Bence
- Hunter College of the City University of New York, New York, NY, 10065, USA; Graduate Center of the City University of New York, New York, NY, 10016, USA
| | - Chirag K Vyas
- Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - E Paige Abel
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Chloe Kleinfeldt
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Scott Essenmacher
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Morgan Kalman
- Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | - Wesley Walker
- Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA
| | | | | | - Jennifer A Shusterman
- Hunter College of the City University of New York, New York, NY, 10065, USA; Graduate Center of the City University of New York, New York, NY, 10016, USA; Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - Gregory W Severin
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA; Facility for Rare Isotope Beams, East Lansing, MI, 48824, USA.
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Lao D, Liu F, Zhou D, Zhan J, Su X, Li M, Chen R, Li S, Jia W. Reinforcement of neutron shielding composites with three-dimensionally interwoven structures via reticulated porous ceramic skeletons. PROGRESS IN NUCLEAR ENERGY 2023. [DOI: 10.1016/j.pnucene.2022.104536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Production of zirconium-88 via proton irradiation of metallic yttrium and preparation of target for neutron transmission measurements at DICER. Sci Rep 2023; 13:1736. [PMID: 36720963 PMCID: PMC9889377 DOI: 10.1038/s41598-023-27993-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 01/11/2023] [Indexed: 02/01/2023] Open
Abstract
A process for the production of tens to hundreds of GBq amounts of zirconium-88 (88Zr) using proton beams on yttrium was developed. For this purpose, yttrium metal targets (≈20 g) were irradiated in a ~16 to 34 MeV proton beam at a beam current of 100-200 µA at the Los Alamos Isotope Production Facility (IPF). The 88Zr radionuclide was produced and separated from the yttrium targets using hydroxamate resin with an elution yield of 94(5)% (1σ). Liquid DCl solution in D2O was selected as a suitable 88Zr sample matrix due to the high neutron transmission of deuterium compared to hydrogen and an even distribution of 88Zr in the sample matrix. The separated 88Zr was dissolved in DCl and 8 µL of the obtained solution was transferred to a tungsten sample can with a 1.2 mm diameter hole using a syringe and automated filling station inside a hot cell. Neutron transmission of the obtained 88Zr sample was measured at the Device for Indirect Capture Experiments on Radionuclides (DICER).
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DICER: a new instrument for nuclear data for nuclear security. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08474-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Bence JA, Satija S, Domnanich KA, Despotopulos JD, Abel EP, Clause HK, Essenmacher S, Kalman M, Kleinfeldt C, Kmak KN, Parsons-Davis T, Vyas CK, Walker W, Scielzo ND, Severin GW, Shusterman JA. Solid-phase isotope harvesting of 88Zr from a radioactive ion beam facility. Appl Radiat Isot 2022; 189:110414. [DOI: 10.1016/j.apradiso.2022.110414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 11/02/2022]
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Stamatopoulos A, Koehler P, Matyskin A, Bond EM, Bredeweg T, Couture A, Di Giovine B, Fassbender M, Hayes-Sterbenz AC, Keksis AL, Parsons K, Rusev G, Ullmann J, Vermeulen C. New capability for indirect neutron capture measurements: The DICER instrument at LANSCE. EPJ WEB OF CONFERENCES 2022. [DOI: 10.1051/epjconf/202226003006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The Device for Indirect Capture on Radionuclides (DICER) implements a new indirect technique for (n,γ) studies in which the neutron capture rate is determined from analysis of resonance neutron transmission data. The DICER instrument and associated radionuclide production at the Isotope Production Facility (IPF), both at the Los Alamos Neutron Science Center (LANSCE), as well radioactive sample fabrication, have been under development in the last few years. First measurements on a radioactive sample (88Zr, t½=83.4 days), which was recently reported to have an extremely large thermal neutron capture cross section and resonance integral [1, 2], are planned for the winter of 2021. A performance overview, brief details on the 88Zr fabrication and proof of good operation results will be presented.
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Dickel T, Mardor I, Wilsenach H, Ashkenazy J, Plaß WR, Scheidenberger C, Yavor MI. NG-TRAP: Measuring neutron capture cross-sections of short-lived fission fragments. EPJ WEB OF CONFERENCES 2022. [DOI: 10.1051/epjconf/202226011021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We lack significant nuclear physics input to understand the rapid-neutron capture (r-)process fully. The r-process is the source of half the elements heavier than iron and the only way to produce the long-lived actinides we find on earth. This process’s key nuclear physics inputs are nuclear masses, cross-sections of (n,γ) and (γ,n), and decay half-lives and branching ratios of neutron-rich isotopes. However, there is currently no method to directly measure neutron-induced reaction rates on short-lived nuclides, so there is no experimental data for the primary nuclear reaction that drives the r-process. We show here a conceptual design of a novel approach to access this information experimentally. The idea is to form a target of short-lived isotopes by confining them as ions in a radio-frequency (RF) trap. Next, they are irradiated with an intense neutron flux, and the reaction products are identified by mass spectrometry. The chosen method is a two-stage process in the presence of high neutron fluxes. The first process is neutron-induced fission in a thin actinide foil to create fission fragments. These fragments are slowed down in a cryogenic stopping cell before being filtered through a radio frequency quadrupole (RFQ) system. The RFQ system selects fission fragments of a specific atomic mass number A and confines them to a small volume in an RF trap, where they are irradiated for a second time in a controlled manner. The resultant A+1 isotopes are mass-selectively transported to a multiple-reflection time-of-flight mass spectrometer, where the reaction products are identified and counted.
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Kmak KN, Despotopulos JD, Scielzo ND. Separation of zirconium and hafnium from early actinides and rare earth elements with eichrom’s pb resin in HCl. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07990-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mehta M, Singh NL, Singh RK, Parashari S, Subhash PV, Naik H, Chauhan RD, Makwana R, Suryanarayana SV, Mukherjee S, Gandhi A, Varmuza J, Katovsky K. Measurement of 90Zr(n,2n)89Zr and 90Zr(n,p)90mY reaction cross-sections in the neutron energy range of 10.95 to 20.02 MeV. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07625-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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